add compiler-rt files for 64-bit math

1 files changed, 25 insertions, 0 deletions

diff --git a/system/lib/compiler-rt/udivdi3.c b/system/lib/compiler-rt/udivdi3.c
new file mode 100644
index 00000000..6c0303df
--- /dev/null
+++ b/system/lib/compiler-rt/udivdi3.c
@@ -0,0 +1,25 @@
+/* ===-- udivdi3.c - Implement __udivdi3 -----------------------------------===
+ *
+ *                    The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file implements __udivdi3 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#include "int_lib.h"
+
+du_int COMPILER_RT_ABI __udivmoddi4(du_int a, du_int b, du_int* rem);
+
+/* Returns: a / b */
+
+COMPILER_RT_ABI du_int
+__udivdi3(du_int a, du_int b)
+{
+    return __udivmoddi4(a, b, 0);
+}